Can't import AutoItLibrary from RIDE - python-2.7

I can install AutoItLibrary, while when import it from RIDE, it always shows red.
And the log file:
Traceback (most recent call last):
Initializing test library 'AutoItLibrary' with no arguments failed: com_error: (-2147024703, 'OLE error 0x800700c1', None, None)
Traceback (most recent call last):
File "C:\Python27\lib\site-packages\AutoItLibrary\__init__.py", line 79, in __init__
self._AutoIt = win32com.client.Dispatch("AutoItX3.Control")
File "C:\Python27\lib\site-packages\win32com\client\__init__.py", line 95, in Dispatch
dispatch, userName = dynamic._GetGoodDispatchAndUserName(dispatch,userName,clsctx)
File "C:\Python27\lib\site-packages\win32com\client\dynamic.py", line 114, in _GetGoodDispatchAndUserName
return (_GetGoodDispatch(IDispatch, clsctx), userName)
File "C:\Python27\lib\site-packages\win32com\client\dynamic.py", line 91, in _GetGoodDispatch
IDispatch = pythoncom.CoCreateInstance(IDispatch, None, clsctx, pythoncom.IID_IDispatch)
File "C:\Python27\lib\site-packages\robotide\spec\librarymanager.py", line 81, in _fetch_keywords
return get_import_result(path, library_args)
File "C:\Python27\lib\site-packages\robotide\spec\libraryfetcher.py", line 20, in get_import_result
lib = robotapi.TestLibrary(path, args)
File "C:\Python27\lib\site-packages\robotide\lib\robot\running\testlibraries.py", line 45, in TestLibrary
lib.create_handlers()
File "C:\Python27\lib\site-packages\robotide\lib\robot\running\testlibraries.py", line 102, in create_handlers
self.handlers = self._create_handlers(self.get_instance())
File "C:\Python27\lib\site-packages\robotide\lib\robot\running\testlibraries.py", line 163, in get_instance
self._libinst = self._get_instance()
File "C:\Python27\lib\site-packages\robotide\lib\robot\running\testlibraries.py", line 173, in _get_instance
self._raise_creating_instance_failed()
File "C:\Python27\lib\site-packages\robotide\lib\robot\running\testlibraries.py", line 227, in _raise_creating_instance_failed
% (self.name, args_text, msg, details))
Anyone can help?

Try to use ActivePython instead of standard distribution.
Reinstall also "pywin32" app.
This solved my problem.

Related

Error migrating database from 2.7.2 to 2.9

During migration of a CKAN instance from version 2.7.2 to 2.9 I'm facing the following error:
2022-03-11 14:11:28,312 INFO [ckan.cli] Using configuration file /etc/ckan/____/production.ini
2022-03-11 14:11:28,312 INFO [ckan.config.environment] Loading static files from public
2022-03-11 14:11:28,364 INFO [ckan.config.environment] Loading templates from /usr/lib/ckan/____/local/lib/python2.7/site-packages/ckan-2.9.5-py2.7.egg/ckan/templates
2022-03-11 14:11:28,581 INFO [ckan.config.environment] Loading templates from /usr/lib/ckan/____/local/lib/python2.7/site-packages/ckan-2.9.5-py2.7.egg/ckan/templates
Traceback (most recent call last):
File "/usr/lib/ckan/____/bin/ckan", line 11, in <module>
load_entry_point('ckan==2.9.5', 'console_scripts', 'ckan')()
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/click/core.py", line 829, in __call__
return self.main(*args, **kwargs)
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/click/core.py", line 782, in main
rv = self.invoke(ctx)
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/click/core.py", line 1259, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/click/core.py", line 1259, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/click/core.py", line 1066, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/click/core.py", line 610, in invoke
return callback(*args, **kwargs)
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/ckan-2.9.5-py2.7.egg/ckan/cli/db.py", line 64, in upgrade
_run_migrations(plugin, version)
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/ckan-2.9.5-py2.7.egg/ckan/cli/db.py", line 122, in _run_migrations
repo.upgrade_db(version)
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/ckan-2.9.5-py2.7.egg/ckan/model/__init__.py", line 326, in upgrade_db
alembic_upgrade(self.alembic_config, version)
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/alembic/command.py", line 254, in upgrade
script.run_env()
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/alembic/script/base.py", line 427, in run_env
util.load_python_file(self.dir, 'env.py')
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/alembic/util/pyfiles.py", line 81, in load_python_file
module = load_module_py(module_id, path)
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/alembic/util/compat.py", line 135, in load_module_py
mod = imp.load_source(module_id, path, fp)
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/ckan-2.9.5-py2.7.egg/ckan/migration/env.py", line 80, in <module>
run_migrations_online()
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/ckan-2.9.5-py2.7.egg/ckan/migration/env.py", line 74, in run_migrations_online
context.run_migrations()
File "<string>", line 8, in run_migrations
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/alembic/runtime/environment.py", line 836, in run_migrations
self.get_context().run_migrations(**kw)
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/alembic/runtime/migration.py", line 330, in run_migrations
step.migration_fn(**kw)
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/ckan-2.9.5-py2.7.egg/ckan/migration/versions/001_103676e0a497_create_existing_tables.py", line 20, in upgrade
if skip_based_on_legacy_engine_version(op, __name__):
File "/usr/lib/ckan/____/local/lib/python2.7/site-packages/ckan-2.9.5-py2.7.egg/ckan/migration/__init__.py", line 22, in skip_based_on_legacy_engine_version
return int(version) >= int(filename.split(u'_', 1)[0])
ValueError: invalid literal for int() with base 10: 'None'
The skip_based_on_legacy_engine_version function is in this file from codebase. In this comparison int(version) >= int(filename.split(u'_', 1)[0]), the second returns 001, and the filename is the first of the versions folder.
I didn't get if the sqlalchemy migrate_version shoud maintain data stored in the Ckan database, couldn't find out.
The version should be setted on the alembic.ini file ?

MongoDB doesn't work locally because of SRV error (no answer)

Situation
We are working on the backend of our project consisting of two services written in Django and FastAPI. Both services use MongoDB as their database system.
In Django we use djongo==1.3.0 for ORM compatibility.
In FastAPI we use odmantic==0.3.4.
Both of these libraries use pymongo==3.11.3 underneath.
This MongoDB SRV error has been an issue for our Django service ever since we created it, but we managed to somehow work around it by not using the latest packages, such as:
Django==2.2.20
djongo==1.3.0
pymongo==3.11.3
Recently due to security risks we had to upgrade:
urllib3 from 1.25.8 to 1.26.5
pydantic from 1.8.1 to 1.8.2
Django from 2.2.20 to 2.2.22
Those were suggested by GitHub's dependabot.
Problem
When we run any of these services locally now they break with the following base exception:
dns.resolver.NoAnswer: The DNS response does not contain an answer to the question: _mongodb._tcp.cluster0.k1eh0.mongodb.net. IN SRV
Full log for Django:
> python manage.py test
Creating test database for alias 'default'...
Traceback (most recent call last):
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/djongo/database.py", line 10, in connect
return clients[db]
KeyError: 'djongo_test'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/dns/resolver.py", line 212, in __init__
rrset = response.find_rrset(response.answer, qname,
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/dns/message.py", line 341, in find_rrset
raise KeyError
KeyError
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/dns/resolver.py", line 220, in __init__
crrset = response.find_rrset(response.answer,
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/dns/message.py", line 341, in find_rrset
raise KeyError
KeyError
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/pymongo/srv_resolver.py", line 72, in _resolve_uri
results = resolver.query('_mongodb._tcp.' + self.__fqdn, 'SRV',
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/dns/resolver.py", line 1100, in query
return get_default_resolver().query(qname, rdtype, rdclass, tcp, source,
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/dns/resolver.py", line 1003, in query
answer = Answer(_qname, rdtype, rdclass, response,
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/dns/resolver.py", line 232, in __init__
raise NoAnswer(response=response)
dns.resolver.NoAnswer: The DNS response does not contain an answer to the question: _mongodb._tcp.database-test.avxhw.mongodb.net. IN SRV
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "manage.py", line 21, in <module>
main()
File "manage.py", line 17, in main
execute_from_command_line(sys.argv)
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
utility.execute()
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/django/core/management/__init__.py", line 375, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/django/core/management/commands/test.py", line 23, in run_from_argv
super().run_from_argv(argv)
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/django/core/management/base.py", line 323, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/django/core/management/base.py", line 364, in execute
output = self.handle(*args, **options)
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/django/core/management/commands/test.py", line 53, in handle
failures = test_runner.run_tests(test_labels)
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/django/test/runner.py", line 629, in run_tests
old_config = self.setup_databases(aliases=databases)
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/django/test/runner.py", line 552, in setup_databases
return _setup_databases(
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/django/test/utils.py", line 170, in setup_databases
connection.creation.create_test_db(
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/django/db/backends/base/creation.py", line 58, in create_test_db
self._create_test_db(verbosity, autoclobber, keepdb)
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/django/db/backends/base/creation.py", line 168, in _create_test_db
with self._nodb_connection.cursor() as cursor:
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/django/db/backends/base/base.py", line 256, in cursor
return self._cursor()
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/django/db/backends/base/base.py", line 233, in _cursor
self.ensure_connection()
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/django/db/backends/base/base.py", line 217, in ensure_connection
self.connect()
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/django/db/backends/base/base.py", line 195, in connect
self.connection = self.get_new_connection(conn_params)
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/djongo/base.py", line 185, in get_new_connection
self.client_connection = Database.connect(db=name, **connection_params)
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/djongo/database.py", line 13, in connect
clients[db] = MongoClient(**kwargs, connect=False)
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/pymongo/mongo_client.py", line 639, in __init__
res = uri_parser.parse_uri(
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/pymongo/uri_parser.py", line 500, in parse_uri
nodes = dns_resolver.get_hosts()
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/pymongo/srv_resolver.py", line 102, in get_hosts
_, nodes = self._get_srv_response_and_hosts(True)
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/pymongo/srv_resolver.py", line 83, in _get_srv_response_and_hosts
results = self._resolve_uri(encapsulate_errors)
File "/home/bk/inz/backend/authservice/venv/lib/python3.8/site-packages/pymongo/srv_resolver.py", line 79, in _resolve_uri
raise ConfigurationError(str(exc))
pymongo.errors.ConfigurationError: The DNS response does not contain an answer to the question: _mongodb._tcp.database-test.avxhw.mongodb.net. IN SRV
Full log for FastAPI:
> python -m src.main
Traceback (most recent call last):
File "/home/bk/inz/backend/testservice/venv/lib/python3.8/site-packages/pymongo/srv_resolver.py", line 72, in _resolve_uri
results = resolver.query('_mongodb._tcp.' + self.__fqdn, 'SRV',
File "/home/bk/inz/backend/testservice/venv/lib/python3.8/site-packages/dns/resolver.py", line 1321, in query
return resolve(qname, rdtype, rdclass, tcp, source,
File "/home/bk/inz/backend/testservice/venv/lib/python3.8/site-packages/dns/resolver.py", line 1305, in resolve
return get_default_resolver().resolve(qname, rdtype, rdclass, tcp, source,
File "/home/bk/inz/backend/testservice/venv/lib/python3.8/site-packages/dns/resolver.py", line 1202, in resolve
(answer, done) = resolution.query_result(response, None)
File "/home/bk/inz/backend/testservice/venv/lib/python3.8/site-packages/dns/resolver.py", line 674, in query_result
raise NoAnswer(response=answer.response)
dns.resolver.NoAnswer: The DNS response does not contain an answer to the question: _mongodb._tcp.cluster0.k1eh0.mongodb.net. IN SRV
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3.8/runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/usr/lib/python3.8/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/home/bk/inz/backend/testservice/src/main.py", line 20, in <module>
client = AsyncIOMotorClient(MONGODB_URL)
File "/home/bk/inz/backend/testservice/venv/lib/python3.8/site-packages/motor/core.py", line 156, in __init__
delegate = self.__delegate_class__(*args, **kwargs)
File "/home/bk/inz/backend/testservice/venv/lib/python3.8/site-packages/pymongo/mongo_client.py", line 639, in __init__
res = uri_parser.parse_uri(
File "/home/bk/inz/backend/testservice/venv/lib/python3.8/site-packages/pymongo/uri_parser.py", line 500, in parse_uri
nodes = dns_resolver.get_hosts()
File "/home/bk/inz/backend/testservice/venv/lib/python3.8/site-packages/pymongo/srv_resolver.py", line 102, in get_hosts
_, nodes = self._get_srv_response_and_hosts(True)
File "/home/bk/inz/backend/testservice/venv/lib/python3.8/site-packages/pymongo/srv_resolver.py", line 83, in _get_srv_response_and_hosts
results = self._resolve_uri(encapsulate_errors)
File "/home/bk/inz/backend/testservice/venv/lib/python3.8/site-packages/pymongo/srv_resolver.py", line 79, in _resolve_uri
raise ConfigurationError(str(exc))
pymongo.errors.ConfigurationError: The DNS response does not contain an answer to the question: _mongodb._tcp.cluster0.k1eh0.mongodb.net. IN SRV
In our CI setup on GitHub Actions Django service tests are still run successfully. It's clear that the problem lies within the DNS aspect.
Questions
Are there any specific DNS servers which do not support MongoDB? I was using Google's 8.8.8.8 before and after it broke.
Why would the problem be caused by upgrading listed dependencies? Only urllib was upgraded for both services.
Is there any workaround?
Review https://github.com/mongodb/specifications/blob/master/source/initial-dns-seedlist-discovery/initial-dns-seedlist-discovery.rst for how SRV URIs work, then manually issue the relevant DNS queries using a tool such as dig to verify your environment has working DNS.

exceptions.TypeError: __init__() got an unexpected keyword argument 'settings'

I have downloaded the distribute-crawler from github. But I found that didn't work. It is giving:
unexpected keyword argument 'settings'
Anybody know this?
The full stack trace is as follows:
2017-03-31 15:43:43 [twisted] ERROR: Unhandled error in Deferred:
2017-03-31 15:43:43 [twisted] ERROR: Unhandled Error
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/scrapy/commands/crawl.py", line 57, in run
self.crawler_process.crawl(spname, **opts.spargs)
File "/usr/local/lib/python2.7/dist-packages/scrapy/crawler.py", line 163, in crawl
return self._crawl(crawler, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/scrapy/crawler.py", line 167, in _crawl
d = crawler.crawl(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1237, in unwindGenerator
return _inlineCallbacks(None, gen, Deferred())
--- <exception caught here> ---
File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1099, in _inlineCallbacks
result = g.send(result)
File "/usr/local/lib/python2.7/dist-packages/scrapy/crawler.py", line 90, in crawl
six.reraise(*exc_info)
File "/usr/local/lib/python2.7/dist-packages/scrapy/crawler.py", line 72, in crawl
self.engine = self._create_engine()
File "/usr/local/lib/python2.7/dist-packages/scrapy/crawler.py", line 97, in _create_engine
return ExecutionEngine(self, lambda _: self.stop())
File "/usr/local/lib/python2.7/dist-packages/scrapy/core/engine.py", line 70, in __init__
self.scraper = Scraper(crawler)
File "/usr/local/lib/python2.7/dist-packages/scrapy/core/scraper.py", line 71, in __init__
self.itemproc = itemproc_cls.from_crawler(crawler)
File "/usr/local/lib/python2.7/dist-packages/scrapy/middleware.py", line 58, in from_crawler
return cls.from_settings(crawler.settings, crawler)
File "/usr/local/lib/python2.7/dist-packages/scrapy/middleware.py", line 36, in from_settings
mw = mwcls.from_crawler(crawler)
File "/usr/local/lib/python2.7/dist-packages/scrapy/pipelines/media.py", line 51, in from_crawler
pipe = cls.from_settings(crawler.settings)
File "/usr/local/lib/python2.7/dist-packages/scrapy/pipelines/images.py", line 95, in from_settings
return cls(store_uri, settings=settings)
exceptions.TypeError: __init__() got an unexpected keyword argument 'settings'

Pymongo Error in PyCharm debugger only

I am seeing a very weired error while debugging my code in PyCharm. The offending lines that cause the exception are
a = db.links.list_indexes()
or the following:
db.links.create_index("created", expireAfterSeconds=settings.EXPIRY_PERIOD, background=True)
My code runs normally inside PyCharm if I simply do run tests, while trying to debug it causes the following error:
======================================================================
ERROR: test_detail_view (sharescreening.tests.TestIndex)
----------------------------------------------------------------------
Traceback (most recent call last):
File "sharescreening/tests.py", line 53, in test_detail_view
response = self.client.get('/')
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/test/client.py", line 500, in get
**extra)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/test/client.py", line 303, in get
return self.generic('GET', path, secure=secure, **r)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/test/client.py", line 379, in generic
return self.request(**r)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/test/client.py", line 466, in request
six.reraise(*exc_info)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 119, in get_response
resolver_match = resolver.resolve(request.path_info)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 365, in resolve
for pattern in self.url_patterns:
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 401, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 395, in urlconf_module
self._urlconf_module = import_module(self.urlconf_name)
File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/gevent/builtins.py", line 93, in __import__
result = _import(*args, **kwargs)
File "sharescreening/urls.py", line 17, in <module>
from .views import put_links, index, get_shares, ShowDetails
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/gevent/builtins.py", line 93, in __import__
result = _import(*args, **kwargs)
File "sharescreening/views.py", line 22, in <module>
a = db.links.list_indexes()
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/pymongo/collection.py", line 1269, in list_indexes
with self._socket_for_primary_reads() as (sock_info, slave_ok):
File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/pymongo/mongo_client.py", line 699, in _socket_for_reads
with self._get_socket(read_preference) as sock_info:
File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/pymongo/mongo_client.py", line 663, in _get_socket
server = self._get_topology().select_server(selector)
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/pymongo/topology.py", line 121, in select_server
address))
File "/home/oznt/.virtualenvs/screenshares/local/lib/python2.7/site-packages/pymongo/topology.py", line 97, in select_servers
self._error_message(selector))
ServerSelectionTimeoutError: No servers found yet
----------------------------------------------------------------------
Ran 4 tests in 32.173s
FAILED (errors=1)
I have no clue why the tests pass in the command line, and in simple running mode but not in debug mode. Can someone shed some light on this problem here?
It turns out that the issue was really a problem with the combination or using gevent with the debugger.
If you this problem, it is resolved by upgrading your pycharm version to 2006.1.
More details can be found in the issue in PYCharm tracker

AttributeError: 'int' object has no attribute '_compiler_dispatch'

I am using the flask-sqlalchemy extension with alembic for migrations. When I try to add a new migration file and upgrade the schema to the latest one, I get the following error:
AttributeError: 'int' object has no attribute '_compiler_dispatch'
The content of the migration file:
revision = 'ec2c2d40eb1'
down_revision = '28dda873b826'
from alembic import op
import sqlalchemy as sa
def upgrade():
op.alter_column(
'users',
'wiki_permission',
new_column_name='wiki_group',
nullable=False,
existing_nullable=False,
type_=sa.Integer(),
existing_type=sa.Integer(),
server_default=1,
existing_server_default=1 # Line of error - 27
)
def downgrade():
op.alter_column(
'users',
'wiki_group',
new_column_name='wiki_permission',
nullable=False,
existing_nullable=False,
type_=sa.Integer(),
existing_type=sa.Integer(),
server_default=1,
existing_server_default=1
)
Thanks for taking time to help me.
Edit:
The complete error message :
INFO [alembic.migration] Context impl MySQLImpl.
INFO [alembic.migration] Will assume non-transactional DDL.
INFO [alembic.migration] Running upgrade 28dda873b826 -> ec2c2d40eb1, users change column wiki_permission to wiki_group
Traceback (most recent call last):
File "/home/kevin/Code/python/flask/terminus/venv/bin/alembic", line 9, in <module>
load_entry_point('alembic==0.6.5', 'console_scripts', 'alembic')()
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/config.py", line 298, in main
CommandLine(prog=prog).main(argv=argv)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/config.py", line 293, in main
self.run_cmd(cfg, options)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/config.py", line 279, in run_cmd
**dict((k, getattr(options, k)) for k in kwarg)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/command.py", line 125, in upgrade
script.run_env()
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/script.py", line 203, in run_env
util.load_python_file(self.dir, 'env.py')
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/util.py", line 212, in load_python_file
module = load_module_py(module_id, path)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/compat.py", line 58, in load_module_py
mod = imp.load_source(module_id, path, fp)
File "alembic/env.py", line 77, in <module>
run_migrations_online()
File "alembic/env.py", line 70, in run_migrations_online
context.run_migrations()
File "<string>", line 7, in run_migrations
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/environment.py", line 688, in run_migrations
self.get_context().run_migrations(**kw)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/migration.py", line 258, in run_migrations
change(**kw)
File "alembic/versions/ec2c2d40eb1_users_change_column_wiki_permission_to_.py", line 27, in upgrade
existing_server_default=1,
File "<string>", line 7, in alter_column
File "<string>", line 1, in <lambda>
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/util.py", line 329, in go
return fn(*arg, **kw)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/operations.py", line 317, in alter_column
existing_autoincrement=existing_autoincrement
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/ddl/mysql.py", line 44, in alter_column
else existing_autoincrement
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/ddl/impl.py", line 76, in _exec
conn.execute(construct, *multiparams, **params)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 720, in execute
return meth(self, multiparams, params)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/sqlalchemy/sql/ddl.py", line 67, in _execute_on_connection
return connection._execute_ddl(self, multiparams, params)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 768, in _execute_ddl
compiled = ddl.compile(dialect=dialect)
File "<string>", line 1, in <lambda>
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/sqlalchemy/sql/elements.py", line 468, in compile
return self._compiler(dialect, bind=bind, **kw)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/sqlalchemy/sql/ddl.py", line 25, in _compiler
return dialect.ddl_compiler(dialect, self, **kw)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/sqlalchemy/sql/compiler.py", line 197, in __init__
self.string = self.process(self.statement, **compile_kwargs)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/sqlalchemy/sql/compiler.py", line 220, in process
return obj._compiler_dispatch(self, **kwargs)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/sqlalchemy/ext/compiler.py", line 410, in <lambda>
lambda *arg, **kw: existing(*arg, **kw))
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/sqlalchemy/ext/compiler.py", line 448, in __call__
return fn(element, compiler, **kw)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/ddl/mysql.py", line 171, in _mysql_change_column
autoincrement=element.autoincrement
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/ddl/mysql.py", line 190, in _mysql_colspec
spec += " DEFAULT %s" % _render_value(compiler, server_default)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/alembic/ddl/mysql.py", line 179, in _render_value
return compiler.sql_compiler.process(expr)
File "/home/kevin/Code/python/flask/terminus/venv/local/lib/python2.7/site-packages/sqlalchemy/sql/compiler.py", line 220, in process
return obj._compiler_dispatch(self, **kwargs)
AttributeError: 'int' object has no attribute '_compiler_dispatch'
Alright, I just went through this same issue. I'm not using flask-sqlalchemy, just straight alembic, but it should be identical.
Second, it worked for me with sa.Integer with no parentheses, so I would recommend that.
The alembic docs say:
When producing MySQL-compatible migration files, it is recommended that the existing_type, existing_server_default, and existing_nullable parameters be present, if not being altered.
Since it seems you are not altering these columns, the docs suggest they should be present. So:
Remove nullable, type_, and server_default. They are not being altered.
Keep existing_nullable, existing_type, and existing_server_default.